Studies of reconciliation in primates have demonstrated that if the relationship value increases between two parties they are more willing to make peace.

To endow animals with human emotions has long been a scientific taboo. But if we do not, we risk missing something fundamental, about both animals and us.

The development of family entities enables men to cooperate far more effectively. Instead of constantly competing for the women with other men, each man essentially has a partner assigned to him, one with whom he can establish a family.

We are by far the most contradictory of all primates. An animal with this much internal conflict has never lived on this earth.

Armies are a purely human invention. Most soldiers who go to war nowadays don't even do it because they're inherently aggressive.

To neglect the common ground with other primates, and to deny the evolutionary roots of human morality, would be like arriving at the top of a tower to declare that the rest of the building is irrelevant, that the precious concept of "tower" ought to be reserved for the summit.

Female bonobos form a strong sisterhood. They rule through female solidarity.